<div class="container">
    <div class="logo"><a href="/">M-Project-Admin</a></div>
    <div class="left_open">
        <i title="展开左侧栏" class="iconfont">&#xe699;</i>
    </div>
    <ul class="layui-nav right" lay-filter="">
        <li class="layui-nav-item">
            <a href="javascript:;">admin</a>
            <dl class="layui-nav-child"> <!-- 二级菜单 -->
                <dd><a href="/logout">退出</a></dd>
            </dl>
        </li>
        <li class="layui-nav-item to-index"><a href="/">首页</a></li>
    </ul>

</div>